#
#
# print("hello word")
#
# print("很好很强大!")
#
# # 添加函数
# def add(x,y):
#     return x+y;
#
# # 减法函数
# def reduce(x,y):
#     return x-y;
#
# #乘法函数
# def multi(x,y):
#     return x*y;
#
# # 除法函数
# def excep(x,y):
#     if(y==0):
#         print ("被除数不能为零")
#         return ;
#     return x/y;
#
# print ("加法函数：",add(100,101))
# print ("减法函数：",reduce(102,100))
# print ("乘法函数：",multi(100,2))
# print ("除法函数：",excep(100,0))
# print ("除法函数2：",excep(100,3))

import time;
import datetime;

print (time.time())









